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Add:No.766 East Changhong Street, Fuxi, Deqing County, Zhejiang province, 313200
Tel: +86-572-8350366
Fax: +86-572-8350299
+86-572-8350362
E-mail: sales@zjmhgg.com
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 Drill pipe, drill collar, heavy drill pipe, coupling, perforating gun barrels, full series of API tube etc；
Specification：API 5L、API 5CT、API 5DP、API SPEC 7-1 etc；
Grade：J-55、K-55、N-80、L-80、L80-9Cr、L80-13Cr、P110、Q125、X70、X80、S135、G105 etc；
Size range：OD 60.325mm-254mm.
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